UV and solar light photocatalytic removal of organic contaminants in municipal wastewater

Journal article

Authors/Editors

Ochieng, Aoyi

Research Areas

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Publication Details

Author list: Mecha AC, Onyango MS, Ochieng A, Jamil TS, Fourie CJS, Momba MNB

Publisher: Taylor and Francis Group

Place: PHILADELPHIA

Publication year: 2016

Journal: Separation Science and Technology (0149-6395)

Journal acronym: SEP SCI TECHNOL

Volume number: 51

Issue number: 10

Start page: 1765

End page: 1778

Number of pages: 14

ISSN: 0149-6395

eISSN: 1520-5754

Languages: English-Great Britain (EN-GB)

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Abstract

This study investigated UV and solar photocatalysis of organic pollutants in municipal wastewater using metal-ion (Ag, Cu and Fe) doped TiO2 photocatalysts. The effects of pH and catalyst dosage on photocatalytic performance were determined. The best performance was obtained using 0.5 g/L catalyst concentration and pH 6, and the treated water met specific requirements of the drinking water quality standards (phenol 10 g/L) and wastewater effluents for discharge chemical oxygen demand (COD) levels (<30 mg/L). The photocatalysts were effective under both UV and visible light, thereby overcoming the limitation of TiO2 which is only effective under UV light.

Keywords

doping, phenol, Photocatalysis, Titanium dioxide, wastewater

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